<?php
$arr = array();
$arr['total'] = 200;
$start = $_POST['start']?$_POST['start']:0;
$len = $_POST['limit']?$_POST['limit']:25;
$arr['root'] = array();
for($i=$start;$i<($len+$start);$i++){
	$arr['root'][] = array('company'=>'title_'.$i,'price'=>22.2,'op'=>'查看明细');
}
echo json_encode($arr);
?>